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3 years ago

What does E stand for?

Mathematics

1 answer:

butalik [34]3 years ago

8 0

Answer:

E stands for the power of ten the number is multiplied by

I thonk

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A number is called a "decreasing number" if each digit in the number is less than the digit to its left. For example, 87420 is a

Vera_Pavlovna [14]

Answer:

252

Step-by-step explanation:

The question is fully equivalent to asking how many subsets of length 5 there are of 10 objects (digits 0–9). That number is 10C5, where nCk is the number of ways to choose k objects from a list of 10. The value of that is ...

nCk = n!/(k!(n-k)!)

There are 252 ways to choose 5 numbers from the digits 0-9:

10C5 = 10!/(5!(10-5)!) = 10·9·8·7·6/(5·4·3·2·1) = 9·4·7 = 252

_____

The order of the selection doesn't matter, because the selected digits are always arranged in decreasing order to form a decreasing number.

3 0

3 years ago

At a balloon festival, 268 people

klasskru [66]

1,132 people came to watch the balloon festival.

3 0

3 years ago

Quadrilateral ABCD is a square with diagonals that intersect at point E. Find angle ADB. A. 11.25º B. 22.5º C. 45º D. 90º

never [62]

IT WOULD BE "D" I BELIEVE

HOPE IM RIGHT AND THIS HELPS

7 0

3 years ago

Read 2 more answers

Sin (3x) dx = ? find the integral

AVprozaik [17]

Answer:

$\displaystyle \displaystyle \int {sin(3x)} \, dx = \frac{-cos(3x)}{3} + C$

General Formulas and Concepts:

Calculus

Antiderivatives - Integrals

Integration Constant C

Integration Property [Multiplied Constant]: $\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx$

Trig Integration: $\displaystyle \int{sin(x)} \, dx = -cos(x) + C$

U-Substitution

Step-by-step explanation:

Step 1: Define

$\displaystyle \int {sin(3x)} \, dx$

Step 2: Identify Substitution Variables

u = 3x

du = 3dx

Step 3: Integrate

[Integral] Rewrite: $\displaystyle \frac{1}{3}\int {3sin(3x)} \, dx$
[Integral] U-Substitution: $\displaystyle \frac{1}{3}\int {sin(u)} \, du$
[Integral] Trig Integration: $\displaystyle \frac{1}{3}[-cos(u)] + C$
[Expression] Multiply: $\displaystyle \frac{-cos(u)}{3} + C$
[Expression] Back-Substitute: $\displaystyle \frac{-cos(3x)}{3} + C$

8 0

3 years ago

Using your knowledge of the Triangle inequality theorem, find the value for x

rewona [7]

X = 14
Add them all together and set them equal to 180 then solve for x

3 0

3 years ago